CN215263595U

CN215263595U - Distribution network capacitance current tester

Info

Publication number: CN215263595U
Application number: CN202021937770.6U
Authority: CN
Inventors: 余浩
Original assignee: Shanghai Leichen Electric Technology Co ltd
Current assignee: Shanghai Leichen Electric Technology Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-12-21
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a capacitance and current tester for a power distribution network, which comprises a case and is characterized in that the four corners of the case are internally provided with a telescopic device, the telescopic device comprises a second cavity and a first buckle, the inside of the second cavity is provided with a telescopic rod, the right side of the telescopic rod is provided with a first clamping groove, the left side of the first buckle is clamped in the first clamping groove, the first buckle comprises a mandril, the right side of the mandril is provided with a U-shaped supporting arm, the surface on the right side of the mandril is sleeved with a third spring, the bottom of the telescopic rod is provided with a fine adjustment structure, the fine adjustment structure comprises a third cavity and a second clamping groove, the inside of the third cavity is fixedly provided with a threaded rod, the bottom of the telescopic rod is fixedly provided with a limiting block, the bottom of the threaded rod is fixedly provided with a third connecting block, the height of the case and the tester are adjusted through the telescopic rod and the first buckle in the telescopic device, the operation of staff can be more convenient in the open air.

Description

Distribution network capacitance current tester

Technical Field

The utility model relates to a power equipment tests technical field, specifically is a distribution network capacitance current tester.

Background

With the increase of the capacity of a power grid, distributed capacitance on a system line is also larger and larger, and at present, half of the power supply neutral points of the power distribution system in China are not directly grounded, so that when the current flowing through a fault point is grounded in a single phase, the capacitance current generated by the capacitance to ground of the line is actually generated when the current flowing through the fault point is grounded, and the current flowing through the fault point is actually the capacitance current generated by the capacitance to ground of the line. According to statistics, the faults of the power distribution network are caused by arcing caused by overlarge capacitance current when a line is grounded in a single phase and arc cannot be automatically extinguished.

The traditional tester needs a worker to hold or directly place on the ground during detection, the tester is easy to encounter slight impact in the using process, and the high-precision tester is easy to damage some electronic elements in the tester during impact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a distribution network capacitance current tester to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a capacitance and current tester for a power distribution network comprises a case, wherein the inside of the case is fixedly provided with the tester, the inside of four corners of the case is provided with a telescopic device, the telescopic device comprises a second cavity and a first buckle, a telescopic rod is arranged inside the second cavity, a first clamping groove is formed in the right side of the telescopic rod, the left side of the first buckle is clamped inside the first clamping groove, the first buckle comprises a push rod, the right side of the push rod is provided with a U-shaped supporting arm, the surface on the right side of the push rod is sleeved with a third spring, the bottom of the telescopic rod is provided with a fine adjustment structure, the fine adjustment structure comprises a third cavity and a second clamping groove, the inside of the third cavity is fixedly provided with a threaded rod, the inside of the second clamping groove is provided with a threaded block matched with the threaded rod, and the bottom end of the telescopic rod is fixedly provided with a limiting block, the bottom fixed mounting of threaded rod has the third connecting block, the third connecting block rotates and is connected with the base.

As a further aspect of the present invention: the front of the case is fixedly provided with a first handle, and the top of the case is hinged with a case cover.

As a further aspect of the present invention: and a cooling fan is fixedly arranged in the tester.

As a further aspect of the present invention: the bottom fixed mounting of tester has damping device, damping device includes first fixed block, first cavity has all been seted up to the both sides of first fixed block inside.

As a further aspect of the present invention: two the inside fixed mounting of first cavity has the slide bar, the surface cover of slide bar is equipped with first spring, the surface cover of slide bar is equipped with the slider.

As a further aspect of the present invention: the top fixedly connected with first connecting block of slider, the top of first connecting block is rotated through the connecting rod and is connected with the second connecting block, second connecting block fixed mounting has the connecting plate, two the centre of first cavity is provided with the second spring, the top fixed mounting of second spring has the bracing piece.

As a further aspect of the present invention: the case is clamped with the case cover through a second buckle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. carry out the regulation to quick-witted case and tester height through telescopic link and first buckle among the telescoping device, can make things convenient for staff's operation in the open air more, reduce tester contact ground simultaneously, the accent of telescopic link connects and can not make the tester be in when the horizontal plane the screw thread piece that rotates the telescopic link bottom stretches out the threaded rod and finely tunes the tester, makes the tester be in the level, thereby prevents to damage the instrument because prevent not flat.

2. The damping device fixedly mounted at the bottom of the tester plays a role in buffering the vibration generated by the tester in the use or transportation process, so that the direct influence of the vibration on the tester is reduced, and the high-precision electronic element inside the tester is protected from being damaged.

Drawings

Fig. 1 is a schematic structural diagram of a capacitance current tester for a power distribution network.

Fig. 2 is a schematic structural diagram of a telescopic device in a capacitance current tester for a power distribution network.

Fig. 3 is a schematic structural diagram of a first buckle in a capacitance current tester for a power distribution network.

Fig. 4 is a schematic structural diagram of a fine tuning structure in a capacitance current tester for a power distribution network.

Fig. 5 is a schematic structural diagram of an overall top view in a capacitance current tester for a power distribution network.

Fig. 6 is a schematic structural diagram of the whole front surface of a capacitance current tester for a power distribution network.

Fig. 7 is a schematic structural diagram of a heat dissipation fan in a power distribution network capacitance current tester.

In the figure: 1. a chassis; 2. a first handle; 3. a tester; 4. a second handle; 5. a case cover; 6. a heat radiation fan; 7. A damping device; 70. a first fixed block; 71. a first cavity; 72. a slide bar; 73. a first spring; 74. a second spring; 75. a support bar; 76. a slider; 77. a first connection block; 78. a second connecting block; 79. a connecting plate; 8. a telescoping device; 81. a second cavity; 82. a telescopic rod; 83. a first card slot; 84. a first buckle; 841. a top rod; 842. a U-shaped support arm; 843. a third spring; 85. a fine adjustment structure; 851. a third cavity; 852. a threaded rod; 853 a second card slot; 854. A thread block; 86. a limiting block; 87. a third connecting block; 88. a base; 9. and a second buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, in an embodiment of the present invention, a power distribution network capacitance current tester includes a case 1, a tester 3 is fixedly installed inside the case 1, telescopic devices 8 are installed inside four corners of the case 1, each telescopic device 8 includes a second cavity 81 and a first buckle, a telescopic rod 82 is installed inside the second cavity 81, a first clamping groove 83 is opened on a right side of the telescopic rod, a left side of the first buckle 84 is clamped inside the first clamping groove 83, the first buckle 84 includes a push rod 841, a U-shaped supporting arm 842 is installed on a right side of the push rod 841, a third spring 843 is sleeved on a surface on a right side of the push rod 841, a fine adjustment structure 85 is installed at a bottom of the telescopic rod 82, the fine adjustment structure 85 includes a third cavity 851 and a second clamping groove 853, a threaded rod 852 is fixedly installed inside the third cavity 851, the inside of second draw-in groove 853 be provided with threaded block 854 of threaded rod 852 looks adaptation, the bottom fixed mounting of telescopic link 82 has stopper 86, the bottom fixed mounting of threaded rod 852 has third connecting block 87, third connecting block 87 rotates and is connected with base 88.

The both sides of tester 3 all are provided with protruding piece, and the both sides of machine case 1 inside all are seted up flutedly.

The top of the telescopic rod 82 is provided with a second limiting block.

The front of the case 1 is fixedly provided with a first handle 2, and the top of the case 1 is hinged with a case cover 5.

The inside of the tester 3 is fixedly provided with a cooling fan 6.

The right side of the cooling fan 6 is fixedly arranged on the inner wall of the right side of the tester 3.

The bottom fixed mounting of tester 3 has damping device 7, damping device 7 includes first fixed block 70, first cavity 71 has all been seted up to the both sides of first fixed block 70.

A sliding rod 72 is fixedly installed inside the two first cavities 71, a first spring 73 is sleeved on the surface of the sliding rod 72, and a sliding block 76 is sleeved on the surface of the sliding rod 72.

The top fixedly connected with first connecting block 77 of slider 76, the top of first connecting block 77 is connected with second connecting block 78 through the connecting rod rotation, second connecting block 78 fixed mounting has connecting plate 79, two the centre of first cavity 71 is provided with second spring 74, the top fixed mounting of second spring 74 has bracing piece 75.

A fourth cavity is formed in the middle of the fixing block 70, and the second spring is fixedly installed inside the fourth cavity.

The bottom of the connecting rod is pivotally connected to the top of the first connecting block 77.

The case 1 is clamped with the case cover 5 through a second buckle 9.

The second buckle 9 is fixedly mounted on the front surface of the case 1 and the front surface of the case cover 5.

The utility model discloses a theory of operation is: when the tester needs to be tested, the second buckle 9 is opened to open the case cover 5 to perform testing, when the testing operation is performed outdoors, the push rods 841 at the four corners of the case 1 are pulled to enable the telescopic rods 82 to extend and be fixed on the ground, when the ground is not completely flat, the threaded rods 852 can extend by adjusting the threaded blocks 854 in the fine adjustment 85 structure to more accurately enable the tester 3 to be in the horizontal position, then the push rods 841 are clamped and fixed in the first clamping grooves 83, the heat generated when the tester 3 works is cooled and dissipated by the heat dissipation fan 6 fixedly installed in the tester 3, the best working environment is kept, the base 88 rotatably connected with the top of the threaded rods 88 can enable the tester 3 to obtain the largest contact surface in any ground environment, and the shock absorption device 7 fixedly installed at the bottom of the tester 3 relieves the impact force on the tester 3 during the use and transportation processes and when impact occurs, reduce the impact of impact to tester 3 to the at utmost reduces because the impact that the striking brought is to tester 3's damage, and the protruding piece that sets up in the recess that 1 inside of machine case set up and 3 both sides of tester docks and can make the tester rock at will in machine case 1, and first handle 2 that 1 openly set up of machine case can conveniently carry, and second handle 4 that sets up in the both sides at 3 tops of tester conveniently takes out tester 3 from the inside of machine case and maintains.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a distribution network capacitance current tester, includes quick-witted case (1), its characterized in that, the inside fixed mounting of quick-witted case (1) has tester (3), the inside in quick-witted case (1) four corners is provided with telescoping device (8), telescoping device (8) include second cavity (81) and first buckle, the inside of second cavity (81) is provided with telescopic link (82), first draw-in groove (83) have been seted up on the right side of telescopic link, the left side joint of first buckle (84) in the inside of first draw-in groove (83), first buckle (84) include ejector pin (841), the right side of ejector pin (841) is provided with U-shaped support arm (842), the surface cover on ejector pin (841) right side is equipped with third spring (843), the bottom of telescopic link (82) is provided with fine setting structure (85), fine setting structure (85) include third cavity (851) and second draw-in groove (853), the inside fixed mounting of third cavity (851) has threaded rod (852), the inside of second draw-in groove (853) be provided with threaded block (854) of threaded rod (852) looks adaptation, the bottom fixed mounting of telescopic link (82) has stopper (86), the bottom fixed mounting of threaded rod (852) has third connecting block (87), third connecting block (87) rotate and are connected with base (88).

2. The distribution network capacitance current tester according to claim 1, characterized in that a first handle (2) is fixedly installed on the front surface of the case (1), and a case cover (5) is hinged to the top of the case (1).

3. The distribution network capacitance current tester according to claim 1, characterized in that the inside of the tester (3) is fixedly provided with a cooling fan (6).

4. The distribution network capacitance current tester according to claim 1, characterized in that a damping device (7) is fixedly mounted at the bottom of the tester (3), the damping device (7) comprises a first fixing block (70), and first cavities (71) are respectively formed in both sides of the first fixing block (70).

5. The distribution network capacitance current tester according to claim 4, characterized in that a slide bar (72) is fixedly installed inside the two first cavities (71), a first spring (73) is sleeved on the surface of the slide bar (72), and a slide block (76) is sleeved on the surface of the slide bar (72).

6. The distribution network capacitance current tester according to claim 5, characterized in that a first connecting block (77) is fixedly connected to the top of the sliding block (76), a second connecting block (78) is rotatably connected to the top of the first connecting block (77) through a connecting rod, a connecting plate (79) is fixedly installed on the second connecting block (78), a second spring (74) is arranged between the two first cavities (71), and a supporting rod (75) is fixedly installed on the top of the second spring (74).

7. The distribution network capacitance current tester of claim 2, characterized in that the case (1) is clamped with the case cover (5) through a second clamp (9).